package com.atguigu.common.valid;

import javax.validation.ConstraintValidator;
import javax.validation.ConstraintValidatorContext;
import java.util.Arrays;
import java.util.HashSet;
import java.util.Set;

//自定义校验器
public class ListValueConstraintValidator implements ConstraintValidator<ListValue,Integer> {

    Set<Integer> set = new HashSet<>();

    @Override
    public void initialize(ListValue constraintAnnotation) {
        int[] vals = constraintAnnotation.vals();
        if(vals != null && vals.length > 0){
            for (int val : vals) {
                set.add(val);
            }
        }
    }
    @Override
    public boolean isValid(Integer value, ConstraintValidatorContext context) {
        return set.contains(value);
    }


}
